Starting a little bit over a month ago, I've been getting 2 different types of crashes (BSODS) and I really need help in figuring out whats causing them so I can try and fix the problem, or get new hardware.
(Crash 1)
The first type of crash is specific to the videogame Dota2. I notice loading screen times take alot longer than usual, and then anywhere from 2-10 minutes of playing the game, the video will hang. I can still hear ingame sounds/music/voices of my friends on teamspeak but the monitor will be frozen to whatever was onscreen at the time.
The only way I'm able to solve this crash is to fully remove my drivers using a program called 'Display Driver Uninstaller.exe' and download the newest drivers from Nvidia (although sometimes I believe there isn't even a new driver so I'm just re-installing the same one).
(Crash 2)
The second crash I get can happen at any time, most often whilst playing a game but even on desktop or browsing the web. When this happens the monitor just turns black (it still has power, but looks as if its in standby mode) and computer becomes unresponsive.
The only way I've managed to get the computer to boot again is to power it off, unplug everything and hold down the power button for 10sec and then reboot.
Crash 1 usually happens maybe once a week, Crash 2 started happening maybe once a week, but has been happening more and more often.
(Crash Logs)
After experiencing these crashes a few times I decided to download BlueScreenView to log the crashes. For some reason it doesnt log every one, but here is an image of the ones it has logged:
I believe the 'ntoskrnl.exe' crash is the one that happens in Dota2, and 'dxgkrnl.exe' is Crash 2.
From what I've researched these crashes can be caused by a faulty Mobo, GPU or bad RAM. I've used windows memtest tool to check RAM and it found no problems.
From what I've read bad video drivers can also cause these problems, but I've completely removed old drivers and installed new ones several times.
I'm hoping that someone can point me towards it being GPU or Mobo (or something else I've not thought of) as I don't have alot of money and can't afford to replace both.
Computer Specs:
(Crash 1)
The first type of crash is specific to the videogame Dota2. I notice loading screen times take alot longer than usual, and then anywhere from 2-10 minutes of playing the game, the video will hang. I can still hear ingame sounds/music/voices of my friends on teamspeak but the monitor will be frozen to whatever was onscreen at the time.
The only way I'm able to solve this crash is to fully remove my drivers using a program called 'Display Driver Uninstaller.exe' and download the newest drivers from Nvidia (although sometimes I believe there isn't even a new driver so I'm just re-installing the same one).
(Crash 2)
The second crash I get can happen at any time, most often whilst playing a game but even on desktop or browsing the web. When this happens the monitor just turns black (it still has power, but looks as if its in standby mode) and computer becomes unresponsive.
The only way I've managed to get the computer to boot again is to power it off, unplug everything and hold down the power button for 10sec and then reboot.
Crash 1 usually happens maybe once a week, Crash 2 started happening maybe once a week, but has been happening more and more often.
(Crash Logs)
After experiencing these crashes a few times I decided to download BlueScreenView to log the crashes. For some reason it doesnt log every one, but here is an image of the ones it has logged:

I believe the 'ntoskrnl.exe' crash is the one that happens in Dota2, and 'dxgkrnl.exe' is Crash 2.
From what I've researched these crashes can be caused by a faulty Mobo, GPU or bad RAM. I've used windows memtest tool to check RAM and it found no problems.
From what I've read bad video drivers can also cause these problems, but I've completely removed old drivers and installed new ones several times.
I'm hoping that someone can point me towards it being GPU or Mobo (or something else I've not thought of) as I don't have alot of money and can't afford to replace both.
Computer Specs:
Processor: i7 960 @3.2Ghz
GPU: GTX 680
RAM: 12288MB
OS: Windows 7